Overscan and Underscan HDTV

You may notice that the Mac's desktop appears to be slightly larger than the HDTV's screen (its edges are cut off); this is called overscan. Or, you may notice that the desktop doesn't occupy all of the HDTV's screen real estate (there are dark areas around the edges); this is called underscan.

Google "MAC overscan HDTV" and you'll fine hundreds of reported issues on cut off side or menu bar when connecting Mac mini, Macbook to HDTV. Overscan is related to the HDTV not actually the MAC OS X. You can usually correct either issue by making adjustments on the HDTV. Check the HDTV's manual for information on making scan-related adjustments. They may be called overscan, underscan, dot-by-dot, or pixel-by-pixel. If your HDTV has a dot-by-dot or pixel-by-pixel capability, give this a try; it should eliminate any over or underscan issues. Some HDTVs only offer these special scan controls on specific inputs, so be sure to connect to the corresponding input on your HDTV.

If this doesn't work try a custom resolution DisplayConfigX set on the MAC OS X.